DB2 查询中进行计算（ (M.JSSL/M.JHSG*100) ）报错，不知道什么原因?报错

查询时，加了进行计算（红色字体），怎么会报错了，不明白

SELECT M.DWDM,M.DWMC,M.JHSG,M.SJMJ,M.JSSL,M.ZZMJ, (M.JSSL/M.JHSG*100) AS JSSLPROCESS FROM (SELECT F.DWDM,F.DWMC,SUM(F.JHSG) AS JHSG,SUM(F.SJMJ) AS SJMJ,SUM(CASE WHEN P.JSSL IS NULL THEN 0.00 ELSE P.JSSL END) AS JSSL, SUM(CASE WHEN P.ZZMJ IS NULL THEN 0.00 ELSE P.ZZMJ END) AS ZZMJ,SUM(P.NUM) AS NUM FROM (SELECT S.C_DWDM AS DWDM,S.C_DWDM AS DWMC,SUM(S.P_JHSG) AS JHSG,SUM(S.P_SJMJ) SJMJ FROM YY_SG.SGJH S WHERE (C_CHECK='1' or C_CHECK='9') AND (COMM <> '2' AND COMM <> '5') GROUP BY S.C_DWDM,S.C_DWDM) F LEFT JOIN(SELECT X.PROVDWDM AS DWDM,X.PROVDWMC AS DWMC,SUM(L.ZZMJ*L.LXFH) AS ZZMJ,SUM(L.JSSL*L.LXFH) AS JSSL,COUNT(DISTINCT L.HTH) AS NUM FROM YY_SC.XJSZ X,YY_SC.XJSZLX L WHERE X.KEYNO=L.KEYNO GROUP BY X.PROVDWDM,X.PROVDWMC) P ON F.DWDM = P.DWDM GROUP BY F.DWDM,F.DWMC) M

错误：

[Error Code: -419, SQL State: 42911]  DB2 SQL Error: SQLCODE=-419, SQLSTATE=42911, SQLERRMC=null, DRIVER=4.15.82. 2) [Error Code: -727, SQL State: 56098]  DB2 SQL Error: SQLCODE=-727, SQLSTATE=56098, SQLERRMC=2;-419;42911;, DRIVER=4.15.82